Hi Shiyang,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.15-rc1 next-20210916]
[cannot apply to xfs-linux/for-next hch-configfs/for-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    
https://github.com/0day-ci/linux/commits/Shiyang-Ruan/fsdax-xfs-Add-reflink-dedupe-support-for-fsdax/20210915-184743
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
3ca706c189db861b2ca2019a0901b94050ca49d8
config: hexagon-randconfig-r045-20210916 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 
c8b3d7d6d6de37af68b2f379d0e37304f78e115f)
reproduce (this is a W=1 build):
        wget 
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O 
~/bin/make.cross
        chmod +x ~/bin/make.cross
        # 
https://github.com/0day-ci/linux/commit/34b16b56bacb2d3e1e98f9ed47d20b545358bdcd
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review 
Shiyang-Ruan/fsdax-xfs-Add-reflink-dedupe-support-for-fsdax/20210915-184743
        git checkout 34b16b56bacb2d3e1e98f9ed47d20b545358bdcd
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 
ARCH=hexagon 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>

All errors (new ones prefixed by >>):

>> fs/dax.c:1483:38: error: incompatible pointer types passing 'const struct 
>> iomap_iter *' to parameter of type 'const struct iomap *' 
>> [-Werror,-Wincompatible-pointer-types]
                   return dax_pmd_load_hole(xas, vmf, iter, entry);
                                                      ^~~~
   fs/dax.c:1206:23: note: passing argument to parameter 'iomap' here
                   const struct iomap *iomap, void **entry)
                                       ^
   1 error generated.


vim +1483 fs/dax.c

  1451  
  1452  /**
  1453   * dax_fault_iter - Common actor to handle pfn insertion in PTE/PMD 
fault.
  1454   * @vmf:        vm fault instance
  1455   * @iter:       iomap iter
  1456   * @pfnp:       pfn to be returned
  1457   * @xas:        the dax mapping tree of a file
  1458   * @entry:      an unlocked dax entry to be inserted
  1459   * @pmd:        distinguish whether it is a pmd fault
  1460   */
  1461  static vm_fault_t dax_fault_iter(struct vm_fault *vmf,
  1462                  const struct iomap_iter *iter, pfn_t *pfnp,
  1463                  struct xa_state *xas, void **entry, bool pmd)
  1464  {
  1465          const struct iomap *iomap = &iter->iomap;
  1466          const struct iomap *srcmap = &iter->srcmap;
  1467          size_t size = pmd ? PMD_SIZE : PAGE_SIZE;
  1468          loff_t pos = (loff_t)xas->xa_index << PAGE_SHIFT;
  1469          bool write = iter->flags & IOMAP_WRITE;
  1470          unsigned long entry_flags = pmd ? DAX_PMD : 0;
  1471          int err = 0;
  1472          pfn_t pfn;
  1473          void *kaddr;
  1474  
  1475          if (!pmd && vmf->cow_page)
  1476                  return dax_fault_cow_page(vmf, iter);
  1477  
  1478          /* if we are reading UNWRITTEN and HOLE, return a hole. */
  1479          if (!write &&
  1480              (iomap->type == IOMAP_UNWRITTEN || iomap->type == 
IOMAP_HOLE)) {
  1481                  if (!pmd)
  1482                          return dax_load_hole(xas, vmf, iter, entry);
> 1483                  return dax_pmd_load_hole(xas, vmf, iter, entry);
  1484          }
  1485  
  1486          if (iomap->type != IOMAP_MAPPED && !(iomap->flags & 
IOMAP_F_SHARED)) {
  1487                  WARN_ON_ONCE(1);
  1488                  return pmd ? VM_FAULT_FALLBACK : VM_FAULT_SIGBUS;
  1489          }
  1490  
  1491          err = dax_iomap_direct_access(iomap, pos, size, &kaddr, &pfn);
  1492          if (err)
  1493                  return pmd ? VM_FAULT_FALLBACK : dax_fault_return(err);
  1494  
  1495          *entry = dax_insert_entry(xas, vmf, iter, *entry, pfn, 
entry_flags);
  1496  
  1497          if (write &&
  1498              srcmap->addr != IOMAP_HOLE && srcmap->addr != iomap->addr) {
  1499                  err = dax_iomap_cow_copy(pos, size, size, srcmap, 
kaddr);
  1500                  if (err)
  1501                          return dax_fault_return(err);
  1502          }
  1503  
  1504          if (dax_fault_is_synchronous(iter, vmf->vma))
  1505                  return dax_fault_synchronous_pfnp(pfnp, pfn);
  1506  
  1507          /* insert PMD pfn */
  1508          if (pmd)
  1509                  return vmf_insert_pfn_pmd(vmf, pfn, write);
  1510  
  1511          /* insert PTE pfn */
  1512          if (write)
  1513                  return vmf_insert_mixed_mkwrite(vmf->vma, vmf->address, 
pfn);
  1514          return vmf_insert_mixed(vmf->vma, vmf->address, pfn);
  1515  }
  1516  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org

Attachment: .config.gz
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